2015 Lexus GS450h sat nav

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GS450h_OM_OM30F70U_(U)
6-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning
off the lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the li ght bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth to avoid
getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may
result in heat damage, fire, or water en tering the headlight unit. This may damage
the headlights or cause condensati on to build up on the lens.
●Vehicles with discharge headlights: While
the headlights are turned on, and for a short
time after they have been turned off, metal
components at the rear of the headlight
assembly will be extremely hot. To prevent
burns, do not touch these metal compo-
nents until you are certain they have cooled
down.
Metal components

5677-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
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When trouble arises
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Coolant inlet cap
Add coolant if necessary.
( P. 569)
Water can be used in an emer-
gency if engine coolant is unavail-
able.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fa ns operate and to check for coolant
leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on immediately
after a cold start. Confirm that the fans are operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning sys-
tem on and off repeatedly. (The fans may not operate in freezing tempera-
tures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
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5687-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
■If “Hybrid System Overheat” is shown on the multi-information dis-
play
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and radi-
ator core (radiator) for any leaks.Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact your
Lexus dealer.
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if power control unit coolant
is unavailable.
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651Alphabetical index
GS450h_OM_OM30F70U_(U)
No-handed driving warning ........ 275
Open door ........................................... 520
Open moon roof ................................ 521
Open hood .......................................... 520
Open trunk ............................................ 521
Open window ...................................... 521
Pre-collision braking ....................... 290
Seat belt reminder ............................ 506
Warning lights .......................................... 87 ABS.......................................................... 504
AFS OFF indicator ........................... 505
Brake hold operated indicator ............................................. 505
Brake system.......................... 503, 506
Charging system............................... 504
Electric power steering.................. 504
Low fuel level ...................................... 506
Malfunction indicator lamp .......... 504
Master warning light........................ 506
Open door ........................................... 506
Parking brake indicator ................. 505
Pre-collision system......................... 505
Seat belt reminder light.................. 506
Slip indicator ........................................ 505
SRS ........................................................... 504
Tire pressure ....................................... 507
Warning messages ............................... 513
Warning reflector storage belt....... 374
Washer ..................................................... 223 Checking............................................... 438
Low washer fluid warning message .......................... 530
Preparing and checking before winter ..................................... 318
Switch....................................................... 223 Washing and waxing .......................... 408
Weight
Cargo capacity.................................... 190
Load limits .............................................. 190
Weight .................................................... 574
Welcome light illumination control ..................................................... 123
Wheels Replacing wheels .............................. 456
Size ...........................................................582
Window glasses...................................... 167
Window lock switch.............................. 167
Windows.................................................... 167 Power windows.................................... 167
Rear window defogger ..................360
Windshield wiper de-icer ................... 361
Windshield wipers ................................223 Position ..................................................... 321
Rain-sensing windshield wipers................................................... 223
Winter driving tips .................................318
Wireless remote control key............. 136 Battery-Saving Function .................. 129
Locking/Unlocking ............................136
Replacing the battery ......................460
WMA disc
*
XM® Satellite Radio*
X
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.